create storage class that wraps localStorage/sessionStorage

storage.js

@@ -0,0 +1,55 @@
+class Session {
+  getItem(k) {
+    return sessionStorage.getItem(k)
+  }
+
+  setItem(k, v) {
+    sessionStorage.setItem(k, v)
+  }
+
+  removeItem(k) {
+    sessionStorage.removeItem(k)
+  }
+
+  keys() {
+    return Object.keys(sessionStorage)
+  }
+
+  values() {
+    return Object.values(sessionStorage)
+  }
+
+  entries() {
+    return Object.entries(sessionStorage)
+  }
+}
+
+export class Storage {
+  constructor() {
+    this.session = new Session()
+  }
+
+  getItem(k) {
+    return localStorage.getItem(k)
+  }
+
+  setItem(k, v) {
+    localStorage.setItem(k, v)
+  }
+
+  removeItem(k) {
+    localStorage.removeItem(k)
+  }
+
+  keys() {
+    return Object.keys(localStorage)
+  }
+
+  values() {
+    return Object.values(localStorage)
+  }
+
+  entries() {
+    return Object.entries(localStorage)
+  }
+}